Home / 918,000.31-1,377,234.05-539,241.37

Finding the Fourth Proportional to 918,000.31, 1,377,234.05 and 539,241.37

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Solution

The fourth proportional to 918,000.31, 1,377,234.05 and 539,241.37 is: 808,999.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,000.31 : 1,377,234.05 = 539,241.37 : x
  2. Step 2: Convert to fraction form
    918,000.31/1,377,234.05 = 539,241.37/x
  3. Step 3: Cross multiply
    918,000.31x = 1,377,234.05 × 539,241.37
  4. Step 4: Simplify right side
    918,000.31x = 742,661,574,957.98
  5. Step 5: Solve for x
    x = 742,661,574,957.98/918,000.31
  6. Step 6: Final answer
    x = 808,999.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.